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Effects of Nicotine, a Plant Secondary Metabolite, on Protective Enzyme and Detoxification Enzyme of Frank linie lla occ ide ntalis.

Effects of Nicotine, a Plant Secondary Metabolite, on Protective Enzyme and Detoxification Enzyme of Frank linie lla occ ide ntalis.

Authors :
Liu Jiani
Su Yuan
Wei Wei
Zhong Yu
Chen Zebin
Yu Lei
Source :
Plant Diseases & Pests; Apr2019, Vol. 10 Issue 2, p7-10, 4p
Publication Year :
2019

Abstract

[Objective] The paper was to explore the effects of plant secondary metabolite on protective enzymes and detoxification enzymes of quarantine pest Frankliniella occidentals. [Method] F. occidentals were continuously exposed to artificial diets containing nicotine from the second to fifth instars for five generations, and the effects of nicotine on protective enzymes and detoxification enzymes of larvae were determined. [Result] The activities of carboxylate esterase (CarE) and glutathione-S-transferase (GST) in midgut of the fifth instar larvae were significantly increased, and reached the maximum at the third generation (1.86 times and 1.59 times, respectively). Nicotine inhibited the activities of superoxide dismutase (SOD) and catalase (CAT). With the increase of feeding generations, the inhibitory effect of nicotine weakened. Nicotine significantly increased the activities of peroxidase (POD). [Conclusion] F. occidentals will gradually adapt to the harm of plant toxins by starting its own detoxification enzyme system and regulating protective enzyme system after feeding on plant secondary substance nicotine. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21523932
Volume :
10
Issue :
2
Database :
Complementary Index
Journal :
Plant Diseases & Pests
Publication Type :
Academic Journal
Accession number :
139444805
Full Text :
https://doi.org/10.19579/j.cnki.plant-d.p.2019.02.003